Radix Ephedrae
April 5, 2009 by Jack
Name: Radix Ephedrae
Resource: Root of Ephedra sinica Stapf and E.intermedia Schrenk et C.A.Mey.,family Ephedraceae.
Characteristic: Root terete,slightly curved,8-25 cm long,0.5-1.5 cm in diameter.Cortex surface grey-brown,coarse,easily separated,with olngitudinal wrinkles and fibrous root scars;apex sometimes with remained stem base.Cross section showing radial marks.Sweet in taste,mild in nature,and attributive to heart and lung channels.
Pharmacodynamics: Arrest sweating:For spontaneous perspiration,usually used together with Radix Astragali seu Hedysari and Radix Angelicae Sinensis,for night sweat,usually used together with Os Draconis,Concha Ostreae and Radix Rehmanniae;for postpartum sweating,prepared as powder with Concha Ostrae for external use.
Pharmacological: 1.Its extract and its components ephedradine A,B,C and ephedrannin A exert a hypotensive effect and cause Peripheral vasodilatation. 2.Inducing muscular contraction of intestines and uterus.
Usage: Decoction:3-10g.External use:Appropriate amount.
Caution:
